Solar small-sized automatic irrigation system

Abstract

The utility model discloses a small automatic solar irrigation system, and relates to the technical field of irrigation systems. The small solar automatic irrigation system comprises a solar cell, a charging management module, a battery, a boosting module, a humidity sensing module and a water pump driving module, the solar cell is connected with the charging management module, the charging management module is connected with the battery, the input end of the boosting module is connected with the battery, and the humidity sensing module is connected with the water pump driving module. The output end of the boosting module is connected with the humidity sensing module and the water pump driving module, and the humidity sensing module is connected with the water pump driving module. By using the solar cell, solar energy is converted into electric energy, and the electric energy is stored in the cell, so that dependence on an alternating current power supply is reduced, power consumption is reduced, socket limitation is not needed, the device can be freely installed at any place with sufficient sunlight, frequent charging is not needed, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation systems, in particular to a small solar automatic irrigation system. Background Technique

[0002] With the development of agricultural planting technology, more and more urban residents begin to plant various plants in their living rooms. However, many growers often forget to water the plants or are unable to supply water to the plants in time during travel, resulting in water shortage for the plants. To address this issue, more and more people choose to purchase automated irrigation devices to assist in plant cultivation.

[0003] In the related art, many automated irrigation devices rely on AC power or battery power supply. However, the use of AC power is limited by the location of the socket, and since automated irrigation devices that require long-term power-on using AC power usually have high power consumption, it results in significant energy consumption, increases the usage cost, and does not conform to the environmental protection concept; while using battery power supply can be used without being plugged into a socket, but the battery power usage time is short, and users need to frequently charge, increasing the inconvenience of use. In addition, there are also some automated irrigation systems that slowly drip tap water into the soil through mechanical control, but this method is prone to water leakage, increasing the waste of water resources and possibly damaging the living room environment.

[0004] These above problems make the overall experience of consumers using existing automated irrigation devices not good. There is an urgent need for a new technical solution to overcome these drawbacks and provide a more convenient, efficient, and energy-saving plant automatic irrigation option for urban residents. Content of the Utility Model

[0005] The purpose of the utility model is to provide a small solar automatic irrigation system to solve the technical problems raised in the above background technique: in the related art, many automated irrigation devices rely on AC power or battery power supply. However, the use of AC power is limited by the location of the socket, and since automated irrigation devices that require long-term power-on using AC power usually have high power consumption, it results in significant energy consumption, increases the usage cost, and does not conform to the environmental protection concept; while using battery power supply can be used without being plugged into a socket, but the battery power usage time is short, and users need to frequently charge, increasing the inconvenience of use. In addition, there are also some automated irrigation systems that slowly drip tap water into the soil through mechanical control, but this method is prone to water leakage, increasing the waste of water resources and possibly damaging the living room environment.

[0006] To achieve the above object, according to one aspect of the present disclosure, a small solar automatic irrigation system is provided, which is characterized by including: a solar cell, a charging management module, a battery, a boost module, a humidity sensing module, and a water pump driving module, wherein, the solar cell is connected to the charging management module, the charging management module is connected to the battery, the input end of the boost module is connected to the battery, the output end of the boost module is respectively connected to the humidity sensing module and the water pump driving module, and the humidity sensing module is connected to the water pump driving module.

[0007] In a possible implementation manner, the charging management module includes a charging chip U2, and the model of the charging chip U2 is TP4056.

[0008] In a possible implementation manner, the PROG pin of the charging chip U2 is connected in series with a resistor R1 and grounded.

[0009] In a possible implementation manner, the battery is a lithium battery.

[0010] In a possible implementation manner, the boost module includes a boost chip U5, and the model of the boost chip U5 is FP6276B.

[0011] In a possible implementation manner, a voltage dividing sampling resistor R7 and a voltage dividing sampling resistor R8 are connected to the FB pin of the boost chip U5, and a sampling resistor R6 is connected between the OC pin of the boost chip U5 and the ground.

[0012] In a possible implementation manner, the humidity sensing module includes an integrated voltage comparator U4.

[0013] In a possible implementation manner, a potentiometer RW1 is connected to the inverting input terminal of the integrated voltage comparator U4, and a sampling terminal U3 is connected to the non-inverting input terminal of the integrated voltage comparator U4.

[0014] In a possible implementation manner, a pull-up resistor R4 is connected in series to the output terminal of the integrated voltage comparator U4, and a sampling terminal protection resistor R3 is connected to the voltage input terminal of the sampling terminal U3.

[0015] In a possible implementation manner, the water pump driving module includes a MOS transistor Q1 and a triode Q2. The base of the triode Q2 is connected to the output terminal of the humidity sensing module, the collector of the triode Q2 is connected to the gate of the MOS transistor Q1, the emitter of the triode Q2 is grounded, the source and the gate of the MOS transistor Q1 are connected to the voltage input terminal, and a capacitor C8 is connected in parallel between the source and the gate of the MOS transistor Q1. The drain of the MOS transistor Q1 is used to connect to the water pump.

[0016] One or more of the above technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

[0017] In a small solar automatic irrigation system provided by an embodiment of the present utility model, by using a solar cell, solar energy is converted into electrical energy and stored in the battery. This not only reduces the dependence on the AC power supply, lowers power consumption, but also eliminates the socket limitation. The device can be freely installed anywhere with sufficient sunlight and does not require frequent charging, improving the convenience of use. By driving the water pump for automatic irrigation according to the detection result of the humidity sensing module, it effectively avoids the inaccurate dripping and water leakage caused by mechanical control, saves water resources, and protects the living environment from being damaged.

[0018] The above description is only an overview of the technical solutions of the present utility model. In order to be able to more clearly understand the technical means of the present utility model, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically gives the specific embodiments of the present utility model. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the circuit module of a small solar automatic irrigation system provided by an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the charging management module circuit of a small solar automatic irrigation system provided by an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the humidity sensing module circuit of a small solar automatic irrigation system provided by an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of the boost module circuit of a small solar automatic irrigation system provided by an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of the water pump drive module circuit of a small solar automatic irrigation system provided by an embodiment of the present application.

[0024] Description of the reference numerals: 100, solar cell; 200, charging management module; 300, battery; 400, boost module; 500, humidity sensing module; 600, water pump drive module. Detailed Embodiments

[0025] To make the purpose, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.

[0026] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of structures and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] Please refer to Figures 1 to 5 , the small solar automatic watering system includes:

[0028] A solar cell 100, a charging management module 200, a battery 300, a boost module 400, a humidity sensing module 500, and a water pump driving module 600. Among them, the solar cell 100 is connected to the charging management module 200, the charging management module 200 is connected to the battery 300, the input end of the boost module 400 is connected to the battery 300, the output end of the boost module 400 is respectively connected to the humidity sensing module 500 and the water pump driving module 600, and the humidity sensing module 500 is connected to the water pump driving module 600.

[0029] Specifically, by using the solar cell 100, solar energy is converted into electrical energy and stored in the battery 300. This not only reduces the dependence on AC power, lowers power consumption, but also eliminates the need for socket restrictions. The device can be freely installed anywhere with sufficient sunlight and does not require frequent charging, enhancing the convenience of use. By driving the water pump for automatic watering according to the detection results of the humidity sensing module 500, it effectively avoids the inaccurate dripping and water leakage caused by mechanical control, saves water resources, and protects the living environment from damage.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0031] The solar cell 100 converts sunlight energy into electrical energy to provide power supply for the system. It can be understood that the solar cell 100 is usually made of semiconductor materials such as silicon, and can utilize light energy to stimulate electron movement to generate current, thereby realizing energy conversion. The solar cell 100 can automatically charge under sunlight and store energy in the battery 300, providing a stable power source for the system, reducing the dependence on traditional AC power, lowering the operating cost and energy consumption of the system, and also improving the environmental friendliness of the system.

[0032] The charging management module 200 is located between the solar cell 100 and the battery 300. Its function is to manage the voltage output by the solar cell 100 and control the transmission of electrical energy to the battery 300 for charging. Under the management of the charging management module 200, the battery 300 receives the electrical energy input from the solar cell 100 and charges. The charging management module 200 will control the charging process of the battery 300 in a timely manner according to the charging status and requirements of the battery 300 to ensure that the battery 300 is in a safe and appropriate charging state. Through this design, the effective conversion and utilization of solar energy are realized, and at the same time, the charging process of the battery 300 is ensured to be safe and stable. This design can not only extend the life of the battery 300, but also improve the energy efficiency and stability of the system.

[0033] Please refer to Figure 2 , the charging management module 200 includes a charging chip U2, and the model of the charging chip U2 is TP4056. It can be understood that the TP4056 charging chip is a linear lithium battery charging management chip, suitable for the charging management of single-cell lithium-ion batteries or lithium polymer batteries, supporting constant current charging and constant voltage charging modes, and having protection functions such as overcharge protection, over-discharge protection, and short-circuit protection, effectively protecting the battery 300.

[0034] Furthermore, please refer to Figure 2 , the PROG pin of the charging chip U2 is connected in series with a resistor R1 and grounded. Specifically, the design of connecting the PROG pin of the charging chip U2 in series with the resistor R1 and grounding is used to adjust the charging current to ensure that it adapts to the battery charging requirements in different charging environments. By adjusting the resistance value of the resistor connected to the PROG pin, the charging current magnitude of the charging chip U2 can be changed. Specifically, a larger resistance value will result in a smaller charging current, while a smaller resistance value will result in a larger charging current. By appropriately adjusting the charging current, it can be ensured that even when the voltage of the solar cell 100 is insufficient, the charging chip U2 can still start and work normally, improving the stability and adaptability of the charging system. For example, when the resistor R1 with a 10K resistor is connected in series with the PROG pin of the charging chip U2 and grounded, the charging current can be set to 0.12A. Such a design can avoid the situation where the charging chip U2 cannot start due to insufficient voltage of the solar panel.

[0035] The battery 300 undertakes the task of energy storage to ensure that the system can continue to operate at night or when the solar energy supply is insufficient. The battery 300 may be a lithium battery, a nickel-metal hydride battery, or other types of rechargeable batteries, preferably a lithium battery.

[0036] The boost module 400 usually includes a boost chip or circuit. The boost module 400 can boost the voltage from the battery 300 to meet the working voltage requirements of other devices or components.

[0037] Please refer to Figure 4 Figure 4 , the boost module 400 includes a boost chip U5, and the model of the boost chip U5 is FP6276B. It can be understood that the boost chip U5 with the model FP6276B has an efficient boost function, which can boost the input voltage to the set output voltage, is applicable to a variety of input voltage ranges, including battery power supply and other power supply situations, and at the same time has safety functions such as overvoltage protection, overcurrent protection and short-circuit protection to protect the circuit and connected devices.

[0038] Please refer to Figure 4 Figure 4 , the FB pin of the boost chip U5 is connected with a voltage-dividing sampling resistor R7 and a voltage-dividing sampling resistor R8, and the OC pin of the boost chip U5 is grounded to access the sampling resistor R6. Voltage sampling is carried out by connecting the voltage-dividing sampling resistors R7 and R8 to the FB pin to control the output voltage and compensate for line losses; the OC pin of the boost chip U5 is grounded to access the sampling resistor R6 to control the maximum output current value and achieve automatic power-off protection for overload.

[0039] The humidity sensing module 500 is used to detect the humidity level of the surrounding environment. The humidity sensing module 500 can convert humidity data into an electrical signal and transmit it to the control component of the system.

[0040] Please refer to Figure 3 Figure 3 , the humidity sensing module 500 includes an integrated voltage comparator U4. The integrated voltage comparator U4 is usually used to detect and compare different voltage levels to realize the function of the humidity sensor. The integrated voltage comparator U4 can help the humidity sensing module 500 monitor the signal of the humidity sensor and convert the signal into a digital signal for processing and analysis. Using an integrated voltage comparator as the soil humidity operation comparison device can set the soil humidity control value according to user needs, and at the same time cancel the use of the single-chip microcomputer, thereby reducing power consumption. This design is more suitable for the scenario powered by a small-capacity lithium battery, which can effectively extend the battery usage time and improve the reliability and stability of the device. Compared with the traditional scheme of using a single-chip microcomputer to control soil humidity, the integrated voltage comparator can simplify the circuit structure, reduce the system cost and power consumption. The integrated voltage comparator has the advantages of fast response, low power consumption and stability, and can accurately monitor the soil humidity state and control according to the set threshold. Among them, the model of the integrated voltage comparator U4 can be LM393DR. LM393DR is a commonly used dual-channel comparator chip with the characteristics of low power consumption, wide operating voltage range and high-speed response, and is very suitable for humidity control applications in soil humidity operation comparison devices.

[0041] Further, please refer to Figure 3, the inverting input terminal of the integrated voltage comparator U4 is connected to a potentiometer RW1, and the non-inverting input terminal of the integrated voltage comparator U4 is connected to a sampling terminal U3. Through the integrated voltage comparator U4, the voltages of the potentiometer RW1 and the sampling terminal U3 are compared to determine whether to output a high-level signal to the water pump drive module 600. Specifically, the potentiometer RW1 is usually used to adjust the threshold or sensitivity of a sensor or a control circuit. By adjusting the resistance value of the potentiometer RW1, the reference voltage of the integrated voltage comparator U4 can be changed. The sampling terminal U3 is used to receive the signal input of the soil humidity sensor. The signal collected by the sampling terminal U3 is compared with the reference voltage adjusted by the potentiometer RW1. When the integrated voltage comparator U4 detects that the signal of the sampling terminal U3 is higher or lower than the threshold set by the potentiometer RW1, it will output a corresponding level signal to the water pump drive module 600 according to the comparison result. In this way, based on the real-time data of the soil humidity sensor, the system can automatically control the operation of the water pump drive module 600 to maintain the soil humidity within the range set by the user.

[0042] Furthermore, please refer to Figure 3 , a pull-up resistor R4 is connected in series at the output terminal of the integrated voltage comparator U4, and a sampling terminal protection resistor R3 is connected to the voltage input terminal of the sampling terminal U3. A pull-up resistor R4 is connected in series at the output terminal of the integrated voltage comparator U4. Since the following water pump drive module 600 uses a MOS transistor as a switching device and requires extremely small current, the resistance value of the pull-up resistor R4 can be set to 10K to reduce power consumption and the complexity of component selection and mounting; changing the sampling terminal protection resistor R3 to 1K makes the sampling range wider (the voltage range that the integrated voltage comparator U4 can divide changes more widely), and can make the adjustment of the humidity value better.

[0043] The water pump drive module 600 is used to control the start, stop and operation status of the water pump according to the electrical signal transmitted by the humidity sensing module 500, so as to realize the effective management and utilization of water resources.

[0044] Please refer to Figure 5, the water pump driving module 600 includes an MOS transistor Q1 and a triode Q2. The base of the triode Q2 is connected to the output terminal of the temperature sensing module 500. The collector of the triode Q2 is connected to the gate of the MOS transistor Q1. The emitter of the triode Q2 is grounded. The source and gate of the MOS transistor Q1 are connected to the voltage input terminal, and a capacitor C8 is connected in parallel between the source and gate of the MOS transistor Q1. The drain of the MOS transistor Q1 is used to connect to the water pump. Specifically, when the humidity sensing module 500 outputs a high level, the triode Q2 conducts, causing the gate of the MOS transistor Q1 to be pulled down to a low level, and the capacitor C8 starts to charge, slowly opening the conduction channel of the MOS transistor Q1 and gradually realizing the start of the water pump; when the humidity sensing module 500 outputs a low level, the triode Q2 cuts off, causing the gate of the MOS transistor Q1 to be pulled up to a high level, and the capacitor C8 starts to discharge, gradually closing the conduction channel of the MOS transistor Q1 and realizing the stop of the water pump. By using the MOS transistor Q1 as the driving switch of the water pump, precise control and fast response of the water pump can be achieved. By replacing the traditional relay with this driving scheme based on MOS transistors and triodes to control devices such as solenoid valves and water pumps, problems such as high driving power consumption, short lifespan, and large power supply impact of the relay can be avoided.

[0045] Details not described in this utility model are all well-known technologies to those skilled in the art.

[0046] For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A solar small automatic irrigation system, characterized in that: include: A solar cell, a charging management module, a battery, a boost module, a humidity sensing module and a water pump driving module, wherein the solar cell is connected to the charging management module, the charging management module is connected to the battery, the input end of the boost module is connected to the battery, the output end of the boost module is respectively connected to the humidity sensing module and the water pump driving module, and the humidity sensing module is connected to the water pump driving module.

2. A solar-powered small-scale automatic irrigation system according to claim 1, characterized in that: The charging management module includes a charging chip U2, and the model of the charging chip U2 is TP4056.

3. A solar small automatic irrigation system according to claim 2, characterized in that: The PROG pin of the charging chip U2 is connected in series with the resistor R1 and is grounded.

4. A solar-powered small-scale automatic irrigation system according to claim 1, characterized in that: The battery is a lithium battery.

5. A solar-powered small-scale automatic irrigation system according to claim 1, characterized in that: The boost module includes a boost chip U5, and the model of the boost chip U5 is FP6276B.

6. A solar-powered small-scale automatic irrigation system according to claim 5, characterized in that: The FB pin of the boost chip U5 is connected to a voltage-dividing sampling resistor R7 and a voltage-dividing sampling resistor R8, and the OC pin of the boost chip U5 is connected to the ground and connected to the sampling resistor R6.

7. A solar-powered small-scale automatic irrigation system according to claim 1, characterized in that: The humidity sensing module includes an integrated voltage comparator U4.

8. A solar-powered small-scale automatic irrigation system according to claim 7, characterized in that: The inverting input terminal of the integrated voltage comparator U4 is connected to a potentiometer RW1 , and the non-inverting input terminal of the integrated voltage comparator U4 is connected to a sampling terminal U3 .

9. A solar-powered small-scale automatic irrigation system according to claim 8, characterized in that: The output end of the integrated voltage comparator U4 is connected in series with a pull-up resistor R4 , and the voltage input end of the sampling terminal U3 is connected with a sampling terminal protection resistor R3 .

10. A solar-powered small-scale automatic irrigation system according to claim 1, characterized in that: The water pump driving module includes a MOS tube Q1 and a triode Q2, the base of the triode Q2 is connected to the output end of the humidity sensor module, the collector of the triode Q2 is connected to the gate of the MOS tube Q1, the emitter of the triode Q2 is grounded, the source and gate of the MOS tube Q1 are connected to the voltage input end, and a capacitor C8 is connected in parallel between the source and gate of the MOS tube Q1, and the drain of the MOS tube Q1 is used to be connected to the water pump.

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